<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        div {
            width: 200px;
            height: 200px;
            background: red;
            margin: 200px auto;
            text-align: center;
            line-height: 200px;
            transition: 1s;
        }

        div:hover {
            transform: skew(45deg);
            transform: skewX(45deg);
            transform: skewY(45deg);
            transform: skew(30deg, 30deg);
        }

    </style>
</head>
<body>
<!--
            transform             变换
                rotate(度数)       旋转
                skew（度数）        倾斜
                 skewx             x轴倾斜
                 skewy             y轴倾斜



          只针对块元素有作用，对行内元素无效；

-->
<div>lang</div>
</body>
</html>